gma950 + latest x11 + latest intel driver

[Vasily Khoruzhick]

Hi, I'm testing latest x11 from git (gentoo's x11 overlay) and latest intel 
driver from git (videocard: gma950). Here's some results:

0. xf86-video-intel-2.5.1 + xorg-server-1.5.3 + mesa-7.2 + kernel 2.6.28:
3D is not usable, ~3-5 fps in quake3. 2D is stable and fast

1. Latest x11 stack from git + latest xf86-video-intel from git + kernel 
2.6.28 + exa (no dri2):
3D is not usable, ~5-10 fps in quake3. 2D is stable and fast

2. Latest x11 stack from git + latest xf86-video-intel from git + kernel 
2.6.28 + uxa (with dri2):
3D is fast, but very unstable. I've got several X lockups: nothing interesting 
in Xorg.0.log or in dmesg, image freezed, system is not responding on 
keyboard\mouse (but sysrq works), but it's possible to login over ssh, and 
it's impossible to kill X :)
There's also some artefacts in 2D with UXA, here's screenshots with comments:
http://fenix-fen.at.tut.by/screen-3.png
http://fenix-fen.at.tut.by/screen-4.png

So, UXA+DRI2 is not suitable for everyday usage at the moment...
Is there any way to get good 3D performance with 2.6.28 kernel and without 
UXA/DRI2?

Regards
Vasily
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